May help some

Simon Blythe

Zorg Guru (I)
Joined
Nov 29, 2016
Points
89
Location
South Birmingham
Since removing the butt strutt from my Zed she has developed a "knock" when applying the throttle or turning left. The noise appeared to eminate from the drivers rear quarter which led me to believe I'd forgotten to tighten the subframe bush. I checked it however it was tight, checked the caliper, the cables, the pads, the drive shaft etc etc but to no avail.

The final check, after several days was the wheel bolts - strangely they were very lose, not much past finger tight.

After taking the wheel off, and scratching my head, I noticed a spigot ring on the hub. Essential this had been sitting proud of the wheel between it and the hub. What it wasn't doing is compressing when the wheel bolts were tightened, so the knocking noise was the slight rotational movement of the wheel on the hub - fortunately there is no elongation of the bolt holes on the wheel.

The moral of the story: check the most minor of things and don't ignore any knocks or bangs that are a little out of the ordinary. Fortunately something made me hesitate and not take the car today so I'd say quite a lucky escape!
 

andyglym

Shiny Dust Caps Make Your Zed Go Faster.
Supporter
British Zeds
Joined
Feb 20, 2015
Points
231
Location
Moresby, West Cumbria, England
Model of Z
2.8 Roadster
Sound advice! Learnt my lesson the hard way in the mid 80's when the rear left went passed me on the Autobahn at 60mph in one of these. Was doing "Smiths" minutes before, very lucky. Full check, more so on long journeys, ever since.
8193190324_a9da831b3e_b.jpg
 

DavidM

Zorg Expert (I)
Supporter
British Zeds
Joined
Apr 25, 2013
Points
208
Location
Ireland
Model of Z
2.8 Roadster
I read your post with interest and thank you for sharing - I too had a similar experience, only with wheel bolts that were just too long going into a 20 mm spacer and therefore the bolts didn't seat properly in the wheel to hub. I too drove the car 30 miles and wasn't happy with the rubbing sound from the rears - on checking from the return journey I found there was play in the rear wheels and it was friction from wheel to hub that was causing the noise - I learned a very important lesson - always check that the wheels are seated properly against the hub by rocking the wheel left to right and top to bottom - I don't know why I didn't check this before driving:banghead:.
 

andyglym

Shiny Dust Caps Make Your Zed Go Faster.
Supporter
British Zeds
Joined
Feb 20, 2015
Points
231
Location
Moresby, West Cumbria, England
Model of Z
2.8 Roadster
Wow that is going back some there buddy!
Oh yes. 86/87 if memory serves. Fortunately being a 6x4 the rear axle kept it together. Nice groove across 3 lanes from the disc though and one or two cars mildly surprised to see a random wheel going solo in the outside lane. Oh how we laughed :wideyed:
 

Grumps

Always happy, apart from when I'm not 🤬
Supporter
British Zeds
Joined
Apr 27, 2014
Points
226
Location
Forest Town, Mansfield
Model of Z
Z4 e85 2.5i
It's an everyday day check in my job. Loose a wheel, loose your job! No get outs.
 
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